C11111333133313232233133313331333132313331323321313331323133313113313111123321   >>    C1111133313331323223313331333133313231333132332131333132313331311331311112332   <<    C11111333133313232233133313331333132313331323321313331323133313113313111123323   >>      C11111333133313232233133313331333132313331323321313331323133313113313111123322   >>